<?php

class CourseController extends Controller
{
    public $chooseName = 'Course Manage';
	/**
	 * @var string the default layout for the views. Defaults to '//layouts/column2', meaning
	 * using two-column layout. See 'protected/views/layouts/column2.php'.
	 */
	public $layout='//layouts/column3';

	/**
	 * @return array action filters
	 */
	public function filters()
	{
		return array(
			'accessControl', // perform access control for CRUD operations
			'postOnly + delete', // we only allow deletion via POST request
		);
	}

	/**
	 * Specifies the access control rules.
	 * This method is used by the 'accessControl' filter.
	 * @return array access control rules
	 */
	public function accessRules()
	{
		return array(
	/*		array('allow',  // allow all users to perform 'index' and 'view' actions
				'actions'=>array('index','view'),
				'users'=>array('*'),
			),
			array('allow', // allow authenticated user to perform 'create' and 'update' actions
				'actions'=>array('create','update'),
				'users'=>array('@'),
			),
			array('allow', // allow admin user to perform 'admin' and 'delete' actions
				'actions'=>array('admin','delete'),
				'users'=>array('admin'),
			),
			array('deny',  // deny all users
				'users'=>array('*'),
            ),*/
		);
	}

	/**
	 * Displays a particular model.
	 * @param integer $id the ID of the model to be displayed
	 */
	public function actionView($id)
	{
        $modelFile = new Resources;

        if(isset($_POST["Resources"]))
        {
            $courseResource = new CourseResources;
            $modelFile->upload("Resources[file]",yii::app()->params['upload_courseResource'],false);
            $courseResource->title = $_POST['title'];
            $courseResource->content = $_POST['content'];
            $courseResource->course_id = $id;
            $courseResource->resources_id = $modelFile->resources_id;
            $courseResource->status = 1;
            if(!$courseResource->save())
            {
                $modelFile->delete();
                throw new CHttpException("Upload Error!.");
            }
            else
            {
                echo "<script type=\"text/javascript\">alert(\"Upload Success\")</script>";
            }
        }

        $dataProvider = new CActiveDataProvider('CourseResources',array(
            'criteria'=>array(
            'condition'=>'course_id = '.$id,
        )));


		$this->render('view',array(
			'model'=>$this->loadModel($id),
            'modelFile'=>$modelFile,
            'dataProvider'=>$dataProvider,
		));
	}
    /**
	 * Deletes a particular model.
	 * If deletion is successful, the browser will be redirected to the 'admin' page.
	 * @param integer $id the ID of the model to be deleted
	 */
	public function actionDeleteResources($rid)
	{
        $model = Resources::model()->findByPk($rid);
        $model->deleteRealResources();
        $model->delete();
        //$this->redirect(isset($_POST['returnUrl']) ? $_POST['returnUrl'] : array('admin'));
	}
	/**
	 * Creates a new model.
	 * If creation is successful, the browser will be redirected to the 'view' page.
	 */
	public function actionCreate()
	{
		$model=new Course;

		// Uncomment the following line if AJAX validation is needed
		// $this->performAjaxValidation($model);

		if(isset($_POST['Course']))
		{
			$model->attributes = $_POST['Course'];
            $model->user_id = yii::app()->user->id;
            if($model->save())
				$this->redirect(array('view','id'=>$model->course_id));
		}

		$this->render('create',array(
			'model'=>$model,
		));
	}

	/**
	 * Updates a particular model.
	 * If update is successful, the browser will be redirected to the 'view' page.
	 * @param integer $id the ID of the model to be updated
	 */
	public function actionUpdate($id)
	{
		$model=$this->loadModel($id);

		// Uncomment the following line if AJAX validation is needed
		// $this->performAjaxValidation($model);

		if(isset($_POST['Course']))
		{
			$model->attributes=$_POST['Course'];
			if($model->save())
				$this->redirect(array('view','id'=>$model->course_id));
		}

		$this->render('update',array(
			'model'=>$model,
		));
	}

	/**
	 * Deletes a particular model.
	 * If deletion is successful, the browser will be redirected to the 'admin' page.
	 * @param integer $id the ID of the model to be deleted
	 */
	public function actionDelete($id)
	{
		$this->loadModel($id)->delete();

		// if AJAX request (triggered by deletion via admin grid view), we should not redirect the browser
		if(!isset($_GET['ajax']))
			$this->redirect(isset($_POST['returnUrl']) ? $_POST['returnUrl'] : array('admin'));
	}

	/**
	 * Lists all models.
	 */
	public function actionIndex()
	{
		$dataProvider=new CActiveDataProvider('Course');
		$this->render('index',array(
			'dataProvider'=>$dataProvider,
		));
	}

	/**
	 * Manages all models.
	 */
	public function actionAdmin()
	{
		$model=new Course('search');
		$model->unsetAttributes();  // clear any default values
		if(isset($_GET['Course']))
			$model->attributes=$_GET['Course'];

		$this->render('admin',array(
			'model'=>$model,
		));
	}

	/**
	 * Returns the data model based on the primary key given in the GET variable.
	 * If the data model is not found, an HTTP exception will be raised.
	 * @param integer $id the ID of the model to be loaded
	 * @return Course the loaded model
	 * @throws CHttpException
	 */
	public function loadModel($id)
	{
		$model=Course::model()->findByPk($id);
		if($model===null)
			throw new CHttpException(404,'The requested page does not exist.');
		return $model;
	}

	/**
	 * Performs the AJAX validation.
	 * @param Course $model the model to be validated
	 */
	protected function performAjaxValidation($model)
	{
		if(isset($_POST['ajax']) && $_POST['ajax']==='course-form')
		{
			echo CActiveForm::validate($model);
			Yii::app()->end();
		}
	}
                     public function actionManageTeacher($id)
                    {
                        $teachers = new Teacher('search');
                        $teachers->unsetAttributes();
                        
                        if (isset($_GET['Teacher']))
                        {
                            $teachers->attributes = $_GET['Teacher'];
                        }
                        
                        if (isset($_POST['data']))
                        {
                           $model = CourseTeacher::model()->findAll('course_id=:cid', array(':cid'=>$id));
                           $datas = $_POST['data'];

                           $i = 0;
                           CourseTeacher::model()->updateAll(array('status'=>0),'course_id=:cid', array(':cid'=>$id));
                           
                           foreach ($datas as $data)
                            {
                                $j = 0;
                               
                                foreach ($model as $m)
                                {
                                    if ($m->teacher_id == $data)
                                   {
                                       $m->status = 1;
                                       $m->save();
                                       
                                       unset($model[$j]);
                                       unset($datas[$i]);
                                   }
                                   $j++;
                                }
                               $i++;
                            }
//                            print_r($datas);die;
                            foreach ($datas as $data)
                            {
                                    $m = new CourseTeacher;
                                    $m->course_id = $id;
                                    $m->teacher_id = $data;
                                    $m->status = 1;
                                    $m->save();
                            }
                            
                           echo "操作成功!";
                           return;
                        }
                        
                        $this->render('manageTeacher', array(
                                'id' => $id,
                                'teachers' => $teachers,
                        ));
                    }
}
